GM said services from the security, safety and navigation services division will be initially available on the new Chevrolet Cheyenne (Silverado domestically) and GMC Sierra pickups, and available on the Cadillac ATS later this year. Throughout 2014, more Chevrolet, Buick, GMC and Cadillac vehicles will become equipped as well.

Terry Inch, OnStar chief operating officer, previously told MLive that the Detroit-based automaker eventually plans to offer OnStar on all of its vehicles sold in Mexico.

Mexico is the fourth country where OnStar services are available, joining the United States, Canada and China. GM originally announced the expansion in September, less than a year after the appointment of Mary Chan to the newly created role of president of GM Global Connected Consumer.

"OnStar’s expansion in Mexico makes it the leading provider of security and communications services in Latin America," Chan said in a statement. "This is a very important step in GM’s global growth and in making connectivity services available to more consumers around the world.”

Models with OnStar in the Mexican market will be announced according to their launch dates, officials said.

GM, which sold 186,383 vehicles in Mexico last year, has opened and staffed a call center in Mexico with advisers specially trained to assist drivers with directions, vehicle information and emergency services. Due to security concerns, GM said it is not disclosing the exact location of the call center, nor the number of advisers hired.

OnStar will be complimentary for one year to allow subscribers in Mexico to experience the services, according to GM. After 12 months, subscribers have the option to purchase one of two available packages: OnStar Connect and OnStar Connect Plus.

Pricing for OnStar Connect, which does not include navigation is 299 pesos ($22.50) a month or 2,999.00 ($225.70). OnStar Connect Plus is priced at 450 pesos ($33.87) a month or 4,500.00 pesos ($338.67) annually.

OnStar subscriptions domestically range from $18.95 to $27.95 per month depending on the range of services.

GM earlier this month announced two new free programs for customers who buy a 2014 model year vehicle. The separate programs include free maintenance for two years and OnStar RemoteLink Key Fob Services, which includes remote start and other services, for five years.